package com.itcast.common.entity;

import java.io.Serializable;

/**
 * 服务器可能返回空的处理
 *
 * @author zheng.zhang
 */
public class NullWritable implements Serializable {
    private static final long serialVersionUID = -8191640400484155111L;
    private static final NullWritable INSTANCE = new NullWritable();

    private NullWritable() {}

    public static NullWritable nullWritable() {
        return INSTANCE;
    }
}
